The project allows almost 1,000 MW incremental capacity of power off-take, the company said in a statement.
Maheshwaram Transmission Limited will build, own, operate and maintain the two lines with a total line length of 236-km for 35 years, it said.
"The state has embarked on a timely journey to upgrade its transmission system towards meeting the projected peak load of over 21,000 MW up to FY 2018-19 and RE power of about 6,016 MW," CEO of Global Infrastructure BU, Sterlite Power, Ved Tiwari said.